CN106404395A - Bearing test device - Google Patents

Bearing test device Download PDF

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Publication number
CN106404395A
CN106404395A CN201610776016.0A CN201610776016A CN106404395A CN 106404395 A CN106404395 A CN 106404395A CN 201610776016 A CN201610776016 A CN 201610776016A CN 106404395 A CN106404395 A CN 106404395A
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CN
China
Prior art keywords
bushing
test
bearing
positioning
radial loaded
Prior art date
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Pending
Application number
CN201610776016.0A
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Chinese (zh)
Inventor
吴易明
王健
杨啸
马聪
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Luoyang Bearing Research Institute Co Ltd
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Luoyang Bearing Science and Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Luoyang Bearing Science and Technology Co Ltd filed Critical Luoyang Bearing Science and Technology Co Ltd
Priority to CN201610776016.0A priority Critical patent/CN106404395A/en
Publication of CN106404395A publication Critical patent/CN106404395A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • G01M13/04Bearings

Abstract

The invention relates to the field of bearing test devices, and particularly relates to a bearing test device. The bearing test device comprises a test head component which comprises left and right bushings. The test head component also comprises a positioning bushing. The positioning bushing and the left and right bushings are coaxially fixed. Centering and positioning of the left and right bushings are performed through the positioning bushing in assembling so that the coaxiality of the left and right bushings can be guaranteed, then the coaxiality of left and right test bearings can be guaranteed and the coaxiality error of the left and right test bearings can be reduced. Compared with the present bearing test device that the left and right bushings are fixed on a base, the coaxiality of the left and right bushings can be guaranteed by the positioning bushing of the bearing test device so that the coaxiality precision of the left and right test bearings can be enhanced, and the problem that the present bearing test device cannot be suitable for miniature bearings can be solved.

Description

Bearing test device
Technical field
The present invention relates to bearing testing device field, particularly to bearing test device.
Background technology
Miniature deep groove ball bearing refers to meter series, and external diameter is less than all kinds of deep groove ball bearings of 9mm.Main material has carbon Steel, bearing steel, stainless steel, plastics, pottery etc. are it is adaptable to the high rotating speed low noise such as all types of industries equipment, small-sized turning motor sets Standby.Experimental study currently for miniature deep groove ball bearing is mainly by fatigue life and strengthening performance test, in order to analyze And improve constantly design level and the product quality of miniature deep groove ball bearing, need the performance dedicated for miniature deep groove ball bearing And life test apparatus are carrying out experimental study, the design for product and theory analysis provide authentic and valid data reference.Mesh The structure of front bearing test device is not particularly suited for miniature deep groove ball bearing, such as application publication number is CN101718625A, Date of publication is a kind of high temperature and high speed test method for sealed bearings disclosed in Chinese patent of 2010.06.02, and it uses The including body base and be arranged on test head assembly on body base of experimental rig, test head assembly includes left bushing, the right side Bushing, axially loaded set, radial loaded set, test main shaft and accompany examination bearing, left and right bushing is fixed on body base, accompanies examination The inner ring of bearing and test bearing is fixed on test main shaft, accompanies the outer ring of examination bearing to be connected with radial loaded set, left and right test The outer ring of bearing is connected with left and right bushing respectively.This bearing test device assembling when, because left and right bushing is fixed respectively On body base, the coaxiality error of left and right test bearing larger so that existing bearing test device be not applied for micro- Profile shaft holds.
Content of the invention
It is an object of the invention to provide a kind of bearing test device, cannot be applied to solving current bearing test device The problem of miniature bearing.
For achieving the above object, a kind of technical scheme of bearing test device of the present invention is:Bearing test device, including Test head assembly, described test head assembly includes left and right bushing, and described test head assembly also includes positioning bushing, described Positioning bushing coaxially fix with left and right bushing.
Described test head assembly also includes radial loaded set, and described bearing test device includes radial loaded mechanism, Described positioning bushing is provided with the radial loaded mechanism perforation for passing through for radial loaded mechanism.
Described radial loaded puts and is provided with rotation stop part, and described left and right bushing is provided with positioning corresponding with rotation stop part Hole, described rotation stop part stretches into described positioning in the hole.
Described radial loaded puts and is provided with for positioning end cap, institute with the examination bearing of accompanying accompanying examination bearing outer ring location fit That states accompanies examination bearing positioning end cap to pass through positioning head bolts to be fixed on radial loaded and put, and described positioning head bolts stretch into Described positioning in the hole constitutes described rotation stop part.
Described left and right bushing is fixedly connected on the left and right end face of positioning bushing by flange arrangement.
Described left and right bushing is fixedly connected on the left and right end face of positioning bushing by flange arrangement, described positioning Bushing is provided with radial loaded mechanism perforation along the positioning positioning bushing louvre that diametrically arranges of bushing, described radial direction Load to put and be provided with least two radial loaded set louvres connecting with louvre.
Described radial loaded set is left and right to be respectively arranged at two ends with left and right rotation stop part, and described left bushing is provided with and is stopped with a left side Turn the part left bushing location hole that stretches into for left rotation stop part of correspondence, right bushing is provided with corresponding with right rotation stop part to be stretched for right rotation stop part The right bushing location hole entering, described left bushing location hole runs through left bushing in left-right direction, and right bushing location hole is along right and left To running through right bushing, left and right bushing location hole is all connected with described radial loaded mechanism perforation.
Described bearing test device also includes axially loaded mechanism, described bearing load maintainer and/or radial loaded Mechanism is flexible loading mechanism, and described flexible loading mechanism includes loading screw rod and the loading that housing is threadeded with housing Head, is provided with loading spring between described loading head and loading screw rod, described loading spring edge to load screw rod extended line is The circumferencial direction of axis is uniformly provided with least three;Described shell internal guide is equipped with spring mounting seat, and described spring is pacified Dress seat is provided with attachment screw perforation, and in attachment screw perforation, guiding is equipped with attachment screw, and attachment screw is threaded with spring Top pressure seat, described loading spring is folded between spring top wedge and spring mounting seat and is set in described attachment screw On.
Described housing is provided with to be applied stressed pressure piece and is arranged on pressure piece and loading to loading screw rod outer peripheral face Flexible top casting die between screw rod.
Described pressure piece is to be threaded on housing to be used for applying stressed plug, institute to the outer peripheral face loading screw rod The flexible top casting die stated is to be arranged on plug and load the flexible resisting force column between screw rod.
Beneficial effects of the present invention are:The test head assembly of bearing test device includes co-axially fixed with left and right bushing Positioning bushing, carries out centering positioning by positioning bushing to left and right bushing during assembling, ensure that the axiality of left and right bushing, And then the axiality of the left and right test bearing of guarantee, reduce the coaxiality error of left and right test bearing, with current by left and right lining Cover the bearing test device that is fixed on base to compare, the positioning bushing of the bearing test device of the present invention ensure that left and right The axiality of bushing, and then improve the coaxial accuracy of left and right test bearing, solving current bearing test device cannot fit Problem for miniature bearing.
Further, described radial loaded covers left and right two ends and is provided with rotation stop part, described left and right bushing be provided with The corresponding location hole of rotation stop part, described positioning in the hole is inserted, in radial loaded mechanism not diameter in one end of described rotation stop part Can prevent radial loaded set from rotating to rotation stop part when loading set to apply active force.
Further, described left and right bushing is fixedly connected on the left and right end face of positioning bushing by flange arrangement, It is fixedly connected with positioning bushing by flange arrangement, convenient installation, and is easy to process, flange arrangement also ensure that simultaneously The axiality of left and right bushing.
Further, described radial loaded is put and is provided with for being determined with the examination bearing of accompanying accompanying examination bearing outer ring location fit Position end cap, described accompany examination bearing positioning end cap to pass through positioning head bolts and be fixed on radial loaded to put, described positioning end Lid screw stretches into described positioning in the hole and constitutes described rotation stop part, and positioning head bolts can either be fixed and accompany examination bearing end Lid, can limit radial loaded set again and rotate, assembling structure is simple.
Further, described positioning bushing is provided with the positioning bushing louvre connecting with radial loaded mechanism perforation, Described radial loaded is put and is provided with least two radial loaded set louvres being connected with louvre, it can be avoided that positioning bushing Cause to accompany the damage of examination bearing, the precision of impact result of the test with the temperature overheating in radial loaded set.
Further, described housing is provided with and loading screw rod outer peripheral face is applied stressed pressure piece and is arranged on pressure Part and load flexible top casting die between screw rod, to loading on the premise of screw rod applies identical active force, by pressure piece and The precession amount loading screw rod after screw rod applying resistance is less to loading for flexible top casting die, and the loading accuracy loading screw rod is higher.
Brief description
Fig. 1 is the structural representation of the specific embodiment 1 of bearing test device of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the structural representation of the water tank of specific embodiment 1 of bearing test device of the present invention;
Fig. 4 is the sectional view of the test head assembly of the specific embodiment 1 of bearing test device of the present invention;
Fig. 5 is the sectional view of the radial loaded mechanism of the specific embodiment 1 of bearing test device of the present invention;
Fig. 6 is the sectional view of the axially loaded mechanism of the specific embodiment 1 of bearing test device of the present invention;
Fig. 7 is the structural representation when left and right bushing arranges plunger of the specific embodiment 2 of bearing test device of the present invention Figure.
Specific embodiment
Below in conjunction with the accompanying drawings embodiments of the present invention are described further.
The specific embodiment 1 of the bearing test device of the present invention, as shown in Figures 1 to 6, bearing test device includes frame 1st, it is arranged on test head assembly 2, the electro spindle for being in transmission connection that installation test bearing is used on frame with test head assembly 2 Drive system 3 and test head assembly be connected to test bearing outer ring apply radial load radial loaded mechanism 4 and Test head assembly is connected to the axially loaded mechanism 5 of the outer ring applying axial load to test bearing and is driven with electro spindle System is connected as electro spindle drive system and provides the cooling water tank 6 of cooling.In the present embodiment, bearing test device is double Structure, that is, test head assembly, electro spindle drive system, axially loaded mechanism, radial loaded mechanism are equipped with two sets.
Workbench 12 is installed with frame 1, workbench is installed with mounting seat 13, electro spindle drive system 3 is fixing In mounting seat 13.Base 14 is additionally provided with mounting seat 13, test head assembly 2 is fixed on base 14.Mounting seat 13 passes through spiral shell Nail is fixed on workbench.The bottom of frame 1 is provided with rolling castor 16, is provided with vent window on rear side of frame.Test head assembly 2 is wrapped Include test head gland 21, radial loaded mechanism 4 is fixedly connected on test head gland 21.
Electro spindle drive system 3 includes motor 31 and electric machine main shaft 32, and electric machine main shaft 32 is provided with electric machine main shaft shaft coupling 33.
Test head assembly 2 includes testing main shaft 22, and test main shaft 22 right-hand member is provided with and is flexible coupling with electric machine main shaft shaft coupling 33 Test main spindle coupling 221, in the present embodiment, test main spindle coupling 221 and electric machine main shaft shaft coupling 33 pass through nylon Restrict and connect, realization test main shaft is flexible coupling with electric machine main shaft, realize electric machine main shaft and test main shaft under high-speed rotation It is stably connected with, in other embodiments, test main shaft can be directly connected to by rubber ring with electric machine main shaft.
Test main shaft 22 on back-to-back be equipped with left and right accompany examination bearing, a left side accompany examination bearing 231 by being arranged on test main shaft Shaft shoulder positioning on 22, a left side accompanies the left side of examination bearing 231 to be provided with spacer 232.The right side of spacer 232 is by being located at test main shaft The shaft shoulder position and be connected to a left side and accompany on the inner ring of examination bearing 231, the left side of spacer 232 is used for and left test bearing 233 Inner ring end face location fit, the part that test main shaft is in spacer 232 left side is provided with left test bearing construction section.Test main shaft Upper install the right side accompany examination bearing 234, the structure of right test bearing 235 and install on the left of accompany examination bearing 231, left test bearing 233 Structure is identical, repeats no more.
The left end of test main shaft 22 is provided with the nut 236 for positioning assembling left side test bearing, left test bearing 233 Inner ring left end face is coordinated with nut 236 top pressure.The right-hand member of test main shaft 22 is provided with for positioning assembling right side test bearing Right bearing installation set 237, the left side of right bearing installation set 237 is coordinated with its right end face top pressure of right test bearing inner ring, right The right side of bearing mounting sleeve 237 is coordinated with main spindle coupling 33 top pressure.
Test head assembly also includes the radial loaded set 24 for being fixedly connected with the left and right outer ring accompanying examination bearing.Radially The left and right two ends of loading set 24 are provided with accompanies examination bearing positioning end cap 241, accompanies examination bearing to position end cap 241 and passes through to position end cap spiral shell Nail 242 is fixed on the end face at left and right two ends of radial loaded set 24, accompanies the cycle surface of examination bearing to try bearing positioning end with accompanying Caping press-fit is to realize radial loaded set and being fixedly connected of accompanying the outer ring trying bearing.
Test head assembly includes left bushing 25 and the right lining for supports right test bearing for supporting left test bearing Set 26, left and right bushing is separately positioned on the left and right two ends of test main shaft 22, in order to ensure the axiality of left and right bushing, and then Improve the coaxial precision of left and right test bearing, left bushing 25 is arranged with positioning bushing 27, left bushing with the periphery of right bushing 26 25th, right bushing 26, positioning bushing 27 are coaxially fixed.The left end of left bushing 25 is provided with left bushing flange arrangement 251, right bushing 26 Right side is provided with right bushing flange arrangement 261, and left bushing flange arrangement 251 passes through left side screw with the left side of positioning bushing 27 252 are fixedly connected, and right bushing flange arrangement 261 is fixedly connected by right side screw 262 with the right side of positioning bushing 27.Fixed Position bushing 27 is fixed on base 14.Test head assembly also includes axially loaded disk 238, and axially loaded disk 238 is arranged on left lining In set 25, the right side of axially loaded disk is used for the left side top pressure cooperation with the outer ring of left test bearing.
In the present embodiment, in order to prevent positioning bushing from relatively rotating with left bushing, left bushing 25 is provided with and left side The corresponding left bushing location hole 253 of screw, left bushing location hole 253 runs through entirely left bushing 25 in left-right direction, positions end cap The screw cap of screw 242 stretches into left bushing positioning in the hole in case fastening position bushing and left bushing relatively rotate.Also same on right bushing Sample be provided with and position head bolts 242 the cooperation of screw cap rotation stop right bushing location hole 263, right bushing location hole 263 is along a left side Right direction runs through right bushing.Positioning head bolts 242 constitute the rotation stop part with location hole cooperation, in other embodiment, left bushing The nut that location hole not through left bushing, can position head bolts can not stretch into left bushing positioning in the hole, and in positioning lining On the left side of set, in addition other rotation stop parts such as setting rotation stop pin stretch into left bushing positioning in the hole to limit positioning bushing and left lining Cover relatively rotates, and in the same manner, right bushing positioning pore structure can be identical with left bushing positioning pore structure, and positioning bushing can left and right It is symmetrical arranged.
Radial loaded mechanism 4 is arranged on the radial side of the test main shaft 22 of test head assembly 2, and positioning bushing 27 is provided with use In the radial loaded mechanism perforation 271 making radial loaded mechanism pass through top pressure on radial loaded set.Radial loaded mechanism 4 includes Coordinate the radial loaded 41 that test bearing is loaded for covering 24 and abutting with radial loaded, radial loaded 41 passes through and radially adds Mounted mechanism perforation 271 and radial loaded set 24 top pressure cooperation.Axially loaded mechanism 5 includes coordinating with axially loaded disk 238 top pressure Axially loaded 51.In the present embodiment, radial loaded mechanism and axially loaded mechanism are flexible loading mechanism.Radially add When mounted mechanism loads, radial load puts on radial loaded and puts, and radial load is transmitted to by radial loaded set and accompanies examination bearing outer ring, And then be transmitted to accompany examination bearing inner race, test main shaft, then from test main shaft be in succession transferred to test bearing inner ring, test bearing Outer ring.When axially loaded mechanism loads, axial force puts on left test bearing outer ring, and axial force is transferred to by left test bearing Test main shaft, and then it is transferred to right test bearing inner ring, right test bearing outer ring successively.
Test head assembly 2 is passed through test head gland 21 and is fixed on base 14, and radial loaded mechanism 4 is fixed on test head pressure On lid 21.The left and right of test head assembly is respectively arranged at two ends with left end cap 28, right end cap 29, and test head assembly is stepped up at left and right end Between lid.Axially loaded mechanism 5 is fixed on left end cap 28.
Radial loaded mechanism 4 includes the radial loaded mechanism shell of sleeve-shaped, and radial loaded mechanism shell includes radially covering Cylinder 42 and the radial loaded end cap 45 being arranged on radial direction sleeve ends, in radial direction sleeve 42, guiding is equipped with radial loaded head 41st, radial spring mounting seat 43, radial transducer fixed seat 44, radial loaded end cap 45 is arranged on the outer face of radial direction sleeve 42 Go up and fixed with radial loaded mechanism shell by screw.Radial loaded end cap 45 is threaded with radial loaded screw rod 46, footpath To loading, screw rod 46 stretches in radial direction sleeve 42 and top pressure is in radial transducer fixed seat 44, radial transducer fixed seat and footpath To being provided with radial pressure sensor 47, radial pressure sensor and radial spring mounting seat, radial transducer between spring mounting seat Fixed seat is screwed.Radial loaded spring is folded between radial loaded head and radial spring mounting seat.
In order to improve the loading accuracy of radial loaded mechanism, meet the requirement of the loading force of miniature bearing, radial loaded end Cover the outer peripheral face being provided with to radial loaded screw rod to apply stressed radial loaded mechanism pressure part and be arranged on radial loaded machine Radial loaded mechanism flexibility top-pressure part between structure pressure piece and radial loaded screw rod.In the present embodiment, radial loaded mechanism Pressure piece is to be threaded on radial loaded end cap to be used for applying stressed plug 481 to the outer peripheral face of radial loaded screw rod, Radial loaded mechanism flexibility top-pressure part is the flexible resisting force column 482 being arranged between plug 481 and radial loaded screw rod.
Plug 481 and flexible resisting force column 482 correspond, and it is equal that flexible resisting force column 482 radially loads end cap circumferencial direction Even be provided with three, during use by rotate plug make the inside precession of plug, plug to flexible resisting force column apply pressure, flexible resistance Post and radial loaded screw top press-fit, under the pressure of flexible resisting force column acts on, the precession resistance of radial loaded screw rod increases. Radial loaded screw rod is applied under identical active force, the slowing of radial loaded screw rod precession, precession amount is less, meanwhile, Symmetrically arranged radial loaded mechanism flexibility top-pressure part also ensure that stablizing of radial loaded screw rod, and radial loaded screw rod is in rotation Easily rock during entering.In the present embodiment, flexible resisting force column is rubber plunger, and in other embodiment, flexible resisting force column exists Under conditions of not damaging the screw thread loading on screw rod, can be other elastomeric materials such as plastics.
Radial spring mounting seat 43 is provided with radial loaded spring 49, and radial spring is stretched in one end of radial loaded spring 49 In mounting groove in mounting seat, other end top pressure is assemblied on radial loaded head, and radial loaded spring 49 is along with radial loaded spiral shell Bar extended line be axis circumferencial direction be uniformly provided with four, compared to existing technology in single spring, the present invention setting four Individual radial loaded spring more can strengthen stability during adjustment radial loaded power for the radial loaded screw rod.In other enforcements In example, the particular number of radial loaded mechanism flexibility top-pressure part and radial loaded spring can be according to the parameter of bearing test device Setting at least three.
Axially loaded mechanism 5 includes axially loaded mechanism shell, and axially loaded mechanism shell includes axial sleeve 52 and sets Put the axially loaded outer end cap 551 in axial sleeve end and axially loaded inner end cap 552, guiding dress in axially loaded inner end cap It is furnished with axially loaded 51, be provided with axle spring mounting seat 531, axle spring top pressure seat 532 in axial sleeve 52, axially sense Device fixed seat 54, axle spring mounting seat and axial sleeve axially load mechanism's force direction guiding cooperation,
In axle spring mounting seat 531, guiding is equipped with the attachment screw 533 corresponding with axially loaded spring 59, attachment screw Threaded with axle spring top pressure seat 532, attachment screw is corresponded with axially loaded spring, axially loaded spring 59 is sheathed On attachment screw and be folded between axle spring top pressure seat and axle spring mounting seat.The screw cap of attachment screw and axial direction Spring mounting seat 531 block coordinates.
The left and right two ends of axial compressive force sensor 57 are respectively at axial sensor fixed seat 54 and axle spring top pressure seat 532 It is screwed.Axially loaded outer end cap 551 is threaded with axially loaded screw rod 56, and axially loaded screw rod stretches into axial sleeve 52 Interior and top pressure is in axial sensor fixed seat.
The outer peripheral face that axially loaded outer end cap is provided with to axially loaded screw rod applies stressed axially loaded mechanism pressure Part and be arranged on the axially loaded mechanism flexibility top-pressure part 582 between axially loaded mechanism pressure part 581 and axially loaded screw rod. Axially loaded mechanism pressure part is identical with the structure of radial loaded mechanism pressure part, axially loaded mechanism flexibility top-pressure part 582 with Radial loaded mechanism flexibility top-pressure part structure is identical, and it will not go into details, and axially loaded mechanism flexibility top-pressure part 582 is also for energy Enough improve the loading accuracy of radial loaded mechanism, meet the requirement to axially loaded power for the miniature bearing.The cloth of axially loaded spring Office is identical with the layout of radial loaded spring, can loading force according to required for bearing test device difference, adjustment is axial The concrete model of loading spring and radial loaded spring and quantity.It is equipped with axially loaded screw rod and radial loaded screw rod conveniently The handle 7 loading.
Positioning bushing louvre 272 is additionally provided with positioning bushing 27, radial loaded is arranged with three and radially loads set week To the radial loaded set louvre 243 being evenly arranged, test head gland 21 is provided with gland louvre 211, gland louvre 211 With bearing test device ft connection.Bearing test device is provided with by radial loaded mechanism perforation 271, positioning bushing louvre 272nd, radial loaded set louvre 243, the first heat dissipation channel of gland louvre 211.Left bushing location hole runs through a described left side Bushing, right bushing location hole runs through described right bushing, the two ends of left bushing location hole outside with bearing test device respectively and Radial loaded mechanism perforation 271 connection, the two ends of right bushing location hole are outside with bearing test device respectively and radial loaded machine Structure perforation 271 connection, bearing test device is additionally provided with and is hit by right bushing by the second heat dissipation channel of left bushing location hole 3rd heat dissipation channel of location hole.Radial loaded set louvre 243 on radial loaded set 24 makes the first heat dissipation channel run through footpath Cover to loading.In the present embodiment, bearing test device adopts grease lubrication, and bearing test device can adopt wind-cooling heat dissipating.Other In embodiment, when bearing test device adopts oil lubrication, above-mentioned first heat dissipation channel is oil lubrication oil circulation passage, and bearing tries Experiment device is cooled down with lubricating oil for Medium Oil.When bearing test device adopts oil lubrication, bearing test device can be with lubricating oil For Medium Oil cooling.Using during oil lubrication, in left and right bushing through hole, setting plunger blocks left and right bushing through hole to reduce oil circuit Gateway quantity, plunger is removable to be fixed in left and right bushing through hole, simplify oil circuit.Keep the first heat dissipation channel unimpeded, now Lubricating oil passes through the first heat dissipation channel circulation, can arrange cooling device circulating oil path is cooled down in the fuel tank of lubricating oil, Reach the purpose of radiating.
During the bearing test device assembling of the present invention, test head is put in base, connection nylon rope simultaneously drips to nylon rope A little lubricating oil is it is ensured that two shaft coupling spacing 1.5-2mm;Left end cap is loaded test head gland, and attachment screw, it is integrally placed at examination Test above head;Ensure that two shaft coupling spacing are constant, test head is fitted tightly with left end cap;Ensure that temperature sensor is installed to Position, measurement head accurately fits in measured bearing outer ring, you can tighten T-shaped screw-nut;Right end cap is installed, and attachment screw.
Computer supervisory control system is opened in energising, opens monitoring programme main interface, will show examination in program main interface in real time Test rotating speed, radial load, alternating water delivery time, bearing outer ring temperature, bear vibration, static current of lcd, test period, accumulative test The parameters such as time.In comparison monitoring programme main interface, the show value of load, rotates the regulation of radial loaded mechanism first with spanner Screw rod, makes adjusting screw rod move down thus compressing radial loaded spring, the size of power is shown to monitoring by pressure sensor In program main interface, the size of applying power determines according to the test requirements document of test bearing, generally by the specified dynamic load of test bearing The 15%~25% of lotus.The control method of axially loaded mechanism is identical with radial loaded mechanism control method.
In computer monitoring program, performance and resistance to is carried out according to the rotating speed step that is previously set to two sets of test bearings Long property test, in whole process of the test test monitoring programme main interface show in real time test speed, radial load, axial load, The parameters such as bearing outer ring temperature, bear vibration, static current of lcd, test period, accumulative test period, and above-mentioned test parameters is protected Exist in the database of computer.Such as abnormal conditions in process of the test, is sent alarm and stopped by computer monitoring program Machine.Shut down after off-test and split out two sets of test bearings, bearing outward appearance, bearing accuracy and clearance are detected, will simultaneously The data of above-mentioned parameter carries out computer disposal, finally makes performance and the Durability Experiment Conclusion of test bearing.
The specific embodiment 2 of the bearing test device of the present invention, the present embodiment is only existed with the difference of above-mentioned specific embodiment 1 In:First heat dissipation channel is oil lubrication oil circulation passage, and bearing test device adopts oil lubrication, and bearing test device is to lubricate Oil is Medium Oil cooling.Using during oil lubrication, as shown in fig. 7, setting plunger 10 blocks left and right bushing in left and right bushing through hole To reduce the gateway quantity of oil circuit, plunger 10 is removable to be fixed in left and right bushing through hole through hole, simplifies oil circuit.Keep first Heat dissipation channel is unimpeded, and now lubricating oil passes through the first heat dissipation channel circulation, can arrange cooling device pair in the fuel tank of lubricating oil Circulating oil path is cooled down, and reaches the purpose of radiating.
In the other embodiment of the bearing test device of the present invention, above-mentioned positioning bushing can be cage construction;An above-mentioned left side, Right bushing can be arranged on positioning bush inside, and the outer peripheral face of left and right bushing is threaded hole, is provided with by positioning bushing Counterbore corresponding with screwed hole, is fixed together positioning bushing with left and right bushing by screw;Above-mentioned location hole can be blind Hole;The above-mentioned resistance mechanism being constituted with flexible top casting die in pressure piece is applied towards perpendicular to load maintainer force to loading screw rod During the pressure in direction, the installation site of resistance mechanism is unrestricted, and such as radial loaded mechanism flexibility top-pressure part can be with radial direction Loading end cover rim test main shaft radial direction be set up in parallel, can be arranged on radial loaded set outer it is also possible to be arranged on radial loaded Set is internal;Above-mentioned radial loaded mechanism can adopt and axially loaded mechanism identical structure.Above-mentioned radial loading device is permissible Using with above-mentioned axial loading device identical structure;Above-mentioned axial/radial loading spring can also be arranged on screw rod and loading Between head, spring top platen is set in one end of screw rod, corresponding spring top pressing board is arranged on loading head;Above-mentioned axial direction adds Carry the pressure sensor put can be arranged between loading spring and loading head, on loading head, setting pressure sensor is fixed Plate, now loading spring top pressure seat should be arranged between loading spring mounting seat and loading head, to facilitate the installation of attachment screw; Above-mentioned flexible top casting die can be rubber screw, and now flexible top casting die and pressure piece are integral type structure;Radial loaded set dissipates The quantity of hot hole is arranged as required on the premise of satisfaction can form thermal dissipating path, can be at least two;Above-mentioned positioning Bushing louvre can be identical with radial loaded mechanism perforation structure, and the installation to facilitate radial loaded mechanism is it is also possible to make axle Hold experimental rig to be applied to two sets or cover radial loading device more;Above-mentioned radial loaded set louvre can be at least two Individual.

Claims (10)

1. bearing test device, including test head assembly, described test head assembly include left and right bushing it is characterised in that:Institute The test head assembly stated also includes positioning bushing, and described positioning bushing is coaxially fixed with left and right bushing.
2. bearing test device according to claim 1 it is characterised in that:Described test head assembly also includes radially adding Carry set, described bearing test device includes radial loaded mechanism, and described positioning bushing is provided with for for radial loaded machine The radial loaded mechanism perforation that structure passes through.
3. bearing test device according to claim 2 it is characterised in that:Described radial loaded puts and is provided with rotation stop Part, described left and right bushing is provided with location hole corresponding with rotation stop part, and described rotation stop part stretches into described positioning in the hole.
4. bearing test device according to claim 3 it is characterised in that:Described radial loaded put be provided with for That accompanies examination bearing outer ring location fit accompanies examination bearing positioning end cap, and described examination bearing positioning end cap of accompanying passes through to position head bolts It is fixed on radial loaded to put, described positioning head bolts stretch into described positioning in the hole and constitute described rotation stop part.
5. the bearing test device according to any one of claim 1-4 it is characterised in that:Described left and right bushing passes through Flange arrangement is fixedly connected on the left and right end face of positioning bushing.
6. bearing test device according to claim 2 it is characterised in that:Described left and right bushing passes through flange arrangement It is fixedly connected on the left and right end face of positioning bushing, described positioning bushing is provided with and radial loaded mechanism perforation edge positioning Positioning bushing louvre that bushing is diametrically arranged, described radial loaded is put and is provided with least two and is connected with louvre Radial loaded covers louvre.
7. bearing test device according to claim 6 it is characterised in that:Described radial loaded covers left and right two ends and divides It is not provided with left and right rotation stop part, described left bushing is provided with the left bushing positioning that for left rotation stop part stretch into corresponding with left rotation stop part Hole, right bushing is provided with the right bushing location hole that for right rotation stop part stretch into corresponding with right rotation stop part, and described left bushing positions Left bushing is run through in hole in left-right direction, and right bushing location hole runs through right bushing in left-right direction, and left and right bushing location hole is all and institute The radial loaded mechanism perforation connection stated.
8. bearing test device according to claim 2 it is characterised in that:Described bearing test device also includes axial direction Load maintainer, described bearing load maintainer and/or radial loaded mechanism are flexible loading mechanism, described flexible loading mechanism The loading screw rod threadeded with housing including housing and loading head, are provided with loading between described loading head and loading screw rod Spring, described loading spring edge is uniformly provided with least three to load the circumferencial direction as axis for the screw rod extended line;Described Shell internal guide is equipped with spring mounting seat, and described spring mounting seat is provided with attachment screw perforation, leads in attachment screw perforation To being equipped with attachment screw, attachment screw is threaded with spring top wedge, and described loading spring is folded in spring top wedge And spring mounting seat between and be set on described attachment screw.
9. bearing test device according to claim 8 it is characterised in that:Described housing is provided with outside to loading screw rod Side face is applied stressed pressure piece and is arranged on pressure piece and loads the flexible top casting die between screw rod.
10. bearing test device according to claim 9 it is characterised in that:Described pressure piece is to be threaded in shell It is used for the outer peripheral face loading screw rod is applied stressed plug on body, described flexible top casting die is to be arranged on plug and load spiral shell Flexible resisting force column between bar.
CN201610776016.0A 2016-08-31 2016-08-31 Bearing test device Pending CN106404395A (en)

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Publication number Priority date Publication date Assignee Title
CN107917807A (en) * 2017-12-29 2018-04-17 中国科学院沈阳自动化研究所 A kind of device based on rotor-bearing system test Dynamic Characteristics of Rolling Element Bearings
WO2020034338A1 (en) * 2018-08-13 2020-02-20 浙江优特轴承有限公司 Bearing dynamic characteristics testing machine

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CN104155110A (en) * 2014-08-25 2014-11-19 洛阳工铭机电设备有限公司 Periodic and dynamic high-temperature working condition testing machine for automobile hub bearings
CN204359529U (en) * 2014-12-15 2015-05-27 中国燃气涡轮研究院 A kind of power load charger for aircraft bearing exerciser

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CN2221685Y (en) * 1995-03-31 1996-03-06 吕志强 Driving shaft vibration-damper
US20030176298A1 (en) * 2001-10-16 2003-09-18 Nsk Ltd. Grease composition and rolling apparatus
CN101718625A (en) * 2009-12-03 2010-06-02 洛阳轴研科技股份有限公司 High-temperature high-speed test method for sealed bearing
CN101726411A (en) * 2009-12-15 2010-06-09 洛阳轴研科技股份有限公司 Correction method of equivalent load of axial film oil cylinder of bearing tester
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107917807A (en) * 2017-12-29 2018-04-17 中国科学院沈阳自动化研究所 A kind of device based on rotor-bearing system test Dynamic Characteristics of Rolling Element Bearings
WO2020034338A1 (en) * 2018-08-13 2020-02-20 浙江优特轴承有限公司 Bearing dynamic characteristics testing machine

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